| Navn | Postnummer | By |
|---|---|---|
| Mach-Tech A/S | 8600 | Silkeborg |
| Masentia A/S | 5250 | Odense SV |
| Maskinfabrikken Automa ApS | 2500 | Valby |
| Masytec A/S | 2605 | Brøndby |
| Mega-Therm ApS | 4683 | Rønnede |
| Metal Work Danmark A/S | 2670 | Greve |
| Microsolutions A/S | 8700 | Horsens |
| Mirit Glas A/S | 2730 | Herlev |
| Marineshaft A/S | 9850 | Hirtshals |
| MARTEC | 9900 | Frederikshavn |